compiler optimization

[arakov]

• native support for getter / setter in structs and classes
• compiler - if the method has no call operation, no need to set arg length
• bcwriter : openFrame - should flush only used arguments (e.g. for test[1] - only one xflush)
• no need to store an argument for the function (constructor)
• interface - can the wrapper class be saved to use it several times?
• optimize operations with byref dynamic variable (no need for boxing / unboxing) - should be locally boxed
• allow to work with ref directly
• simplify operations with ref variable - if (0 == (cast int(theTop))) { ... }
• optimization : xstore sp:1, r:0
• jumping - aligning the target to 4 / 8
• native support for real to long and long to real
• external call : pass int constants directly
• primitive operations : support all comparison operations (not only <, == and !=)
• optimize a ? b : c - do not use branching
• equal native bool operation
• optimization : direct access for the simple properties
• optimization : direct access for array indexer
• calling dynamic message : the message variable is boxed, is it possible to do it without boxing?
• why there are duplicates GA_EXT_OVERLOAD_LIST (e.g. __getClassName)?
• cache the results of resolveMessageAtCompileTime
• if self variable is not used - do not store it
• if the variable is not used - remove it from stack; the local variables must be recalibrate in this case
• copying the data - take the alignment into account
• opening frame - filling and so on
• struct copying - must be optimized to 4 / 8 dependent on the architecture
• accessing struct field must take into account data field alignment
• direct operation required for: singleton helper { get(out int n) { n := 2; } }
• pi under 6 sec
• if:is / cast operation can be optimized : if the object has no custom dispatcher probably it is enough to check vmt content